// Singleton pattern.

#include <iostream>
#include <cstring>
using namespace std;

class Human {
	public:
		Huamn( int age=0, const char* name="wuming" ) : m_age( age ), m_name( name ){
		
		}
	private:
		int m_age;
		string m_name;
};

// designer
// ------------------------------------------------------------------
// user

int main( void ) { 
	Human a( 22, "zhangfei" ), b( 24, "zhaoyun" ), c( 18, "lily" ), d( 50, "guaangjun" );


	return 0;
}

